a testament to the analog performance of the LynxONE, the figure above depicts a +4 dBu
signal passing through the entire analog signal path and the A/D and D/A converters.
Notice the flat noise floor and lack of noise components above the -130 dBFS line.
Bit-perfect 96 kHz Digital I/O
When studio gear is
connected digitally, the expectation is a perfect audio signal link down to the least
significant bit. LynxONE delivers on this expectation by providing bit-perfect, 24-bit
digital I/O at sample rates up to 96 kHz.
Supporting both AES/EBU and S/PDIF formats
through software selection, LynxONE locks on to input signals from any studio device.
Signals degraded by long cable runs are not a problem. LynxONE employs two phase-locked
loop stages on its digital input that clean up incoming signals and offer excellent jitter
Both input and output are transformer
coupled providing both common mode rejection to tackle studio noise and isolation that
prevents ground loops.
Low-jitter Sample Clock
24-bit A/D and D/A
converters require a stable, low-jitter clock in order to accurately sample and reproduce
audio signals. LynxONE incorporates a custom phase-locked loop (PLL) based sample clock
generator with extremely low jitter. In addition, the PLL has wide control registers to
allow precise frequency tuning in minute increments and support a variety of clock
Accurate Synchronization and
Multiple Card Support
LynxONE is very adept as a
synchronous slave or as a master timing source in any audio or video production studio. In
slave mode, it will accurately lock to word clocks with frame-accurate phase. It will also
lock to AES/EBU and S/PDIF signals, as well as other standard clock references. As a
source, LynxONE generates a low-jitter word clock from its precision oscillator or from
any one of the selected slave mode sources. LynxONE works especially well with digital
video capture cards that include clock outputs for perfect A/V synchronization.
BNC connections provide clock I/O
connections to external equipment. Likewise, internal clock connections to other computer
cards are accommodated with LynxONE's board-mounted headers.
Speaking of other computer cards, if more
analog or digital I/O channels are required, up to four LynxONE's can be connected to
provide a phase-locked multi-track system!
Having the ability to easily
monitor the recording inputs is mandatory during overdubbing sessions. LynxONE allows the
selection of either the analog or digital inputs as the monitor source. This signal can be
mixed with playback audio on either the analog or digital outputs or both simultaneously.
In addition to providing flexible monitoring, this capability allows
"stand-alone" A/D or D/A conversion completely on board LynxONE. Because mixing
is performed in hardware, recording input-to-output delay is one sample period. This
equates to an extremely low 22 microseconds at a 44.1 kHz sample rate.
Independent 4-channel Architecture
Operation of the analog and
digital inputs and outputs on the LynxONE is definitely not an either/or situation. They
can be used simultaneously to provide up to four channels of recording and playback. The
independent data streams associated with each I/O correspond to standard Windows
multimedia devices. This architecture allows simple control of I/O routing using device
selection menus available in most audio applications.
FPGA-Based I/O Processor Keeps Data
Handling multiple streams of
24-bit audio data without a hiccup requires a dedicated real-time processor. LynxONE
incorporates a proprietary I/O processing engine that routes and buffers data, manages I/O
resources, and communicates with the host computer without the latencies and overhead
associated with general purpose signal processors.
To accommodate unexpected latencies in a
computer-based audio workstation, especially those caused by bus-hogging graphics cards,
large 8 Kbyte sample buffers support each audio stream to maintain continuous glitch-free
Low-Latency Dual MIDI Ports
LynxONE's two MIDI ports
were not an afterthought during the design phase. They were designed from the ground up
using FPGA technology. The ports are independent and support up to 32 MIDI channels, with
each having both input and output. Deep 64-byte receive and transmit buffers prevent lost
Key to accurate timing for MIDI sequencing
and playback and time code synchronization is low latency message passing to and from the
MIDI ports and host computer. The LynxONE's MIDI ports include critical-message-handling
technology that packs real time Note On, Note Off, and MTC messages for rapid transfers
over the PCI bus.
LynxONE Mixer Application
|Complete software control of
LynxONE's features is provided with the LynxONE Mixer. As shown to the right, this
application permits keyboard and mouse click control of volume, sample clock generator,
digital I/O format, analog trim, and input monitoring. Peak level meters are also
Drivers for any Windows Workstation and
For any computer-based audio
product, hardware is only half of the equation. For this reason, half of the Lynx
engineering team is devoted to device driver coding. Using our many years of experience
across a variety of operating systems, we have designed rock-solid drivers for Windows
95/98 and for Windows NT on Intel and DEC Alpha platforms.
In light of concerns about latency, we
created an efficient data transfer mechanism in the LynxONE drivers that, working in
concert with the fast response of the hardware, delivers excellent throughput without the
sluggish response times commonly experienced in PC-based workstations.
The drivers provide audio and MIDI support
through standard Windows multimedia interfaces which provides compatibly with all popular
third party software. The MIDI driver supports multiple clients to allow synchronization
of several applications to a single MIDI source.
Simple Jumperless Installation
We designed the LynxONE so a
user can be up and running in a matter of minutes. The installation procedure is simple
and painless - no DMA to be configured, no interrupts or I/O's to set, and no jumpers to
switch! LynxONE takes full advantage of the plug and play capabilities of the PCI Bus.
The LynxONE Setup program automatically
determines whether to install the Windows 95/98 driver or Windows NT driver based on your
current operating system.
A now for the kitchen
LynxONE includes two professional quality cables sets. The Audio cable is six
feet in length and provides XLR connections for analog and digital I/O on shielded twisted
pair cable. The two-foot MIDI/Clock cable supplies DIN and BNC connections for MIDI and
clock I/O, again using shielded cable.
The minimum computer system
required for the LynxONE is a 90MHz Pentium-class or Alpha processor with an EGA or VGA
display and adapter, 16MB of RAM, Windows 95 or Windows NT 4.0 and one empty PCI Slot. We
recommend at least a 166MHz Pentium-class or Alpha processor with a S-VGA display and
adapter, 32MB of RAM, Windows 95 or Windows NT 4.0 and one empty PCI Slot.
Devoted Support Staff
Lynx's support team is
committed to providing the best service possible. They are well versed in the operation of
the LynxONE, operating system configuration, and most popular audio and MIDI related
applications. They offer quick email responses, typically within 12 hours. If you call, a
real live human will respond.
© Copyright 1998, 1999, Lynx
Studio Technology, Inc. All Rights Reserved.